Valves, the difference opening time makes.

[Zen///]

I wondered what a high speed blast of air would do to something, so at point blank, I fired blank shots out of my burst disk/ball valve sniper at paper.

Ball valve 70psi

Burst disk 70psi

Opening time>psi

Both at 70psi from point blank with the Gepárd SSAMR.

[bigwick]

wow, what a difference. i have a question. i have researched it and searched for it only to come back with no results. i know how a burst disk works, but i dont understand how it is set up and what to use. can you help?

[Zen///]

http://www.spudfiles.com/spud_wiki/inde ... Burst_disk

http://www.spudfiles.com/spud_wiki/inde ... burst_disk

My cannon is simply a ball valve behind a burst disk.
It luckily gives a 2 sec delay from actuating the ball valve and the disk ruptureing, giveing time for aiming and turning the ball vlave.

http://www.spudfiles.com/forums/viewtop ... tml#149682

http://www.spudfiles.com/spud_wiki/inde ... ening_time

[bigwick]

ok ok thanks alot ill look at the links in a min

[Hotwired]

Thats some freaky tearing on the burst disk one.

I can't say I've personally opened up on a sheet of A4 at point blank with an air round but that sheet's been torn in half and bits were nibbled from the edges.

Very odd.


But otherwise, yeah opening time improves air dumping a lot. You just can't manually open a ball valve in anything like the time a disk splitting or a pressure difference in a piston/diaphragm can.

[Zen///]

Its not a scam or anything, I was suprised as well.

"Wtf thats not possible" Looks at the ripped edges*

edit: The paper was leaning against the barrel, no backrest. It flew about 3 feet back...

Edit: In pieces

[bigwick]

ok zen your links didnt help. thats the part of the burst disk information i already knew. i was looking for directions or diagrams of how to install or connect a burst disk valve.

[thespeedycicada]

just get a union and you should figure it out from there.

im guessing you know what a union looks like?

[Zen///]

http://www.spudfiles.com/spud_wiki/inde ... itle=Union

union

Whoa, i just realized your avatar was a salamander in a pipe.

[bigwick]

no now you lost me. whats a union? is that like a coupling?

[thespeedycicada]

thanks zen/// im too lazy to find links and post them *sigh*

[bigwick]

ok im sry for my last post, i didnt click the link. well anyway so basicly r they readily available like sprinkler valves?

[thespeedycicada]

Zen! its not a salamander its a leopard gecko! named cheerio! and she is in fact in a barrel of an older cannon unfortunately she is gone now
but you can expect my bird displaying his beautiful self on my beautiful piston gun as my new avatar soon!

[bigbob12345]

Bigwick you can eaisaly find them up to 2in in size at almost any hardware store.

[bigwick]

thanks bigbob your great